Metallic hoop.



W. GOLDIE.

METALLIC HOOP.

APPLICATION FILED NOV9.1907.

920 31 9, Patented May 4, 1909.

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UNITED STATES PATENT OFFICE;

WILL AM GOLDIE, OF wlLkmssune, PENNSYLVANIA.

' METALLIC SHOOP.

Specification of Letters Piatent.

Patented May 4, 1909.

Application filed November 9, 1907. Serial No. 401,524.

-To all whom it may concern:-

Be it known that I, WILLIAM GoLnrE, a resident of Vfilkinsburg in thecounty of Allegheny and State of lennsylva'nia, have invented a new anduseful Improvement in Metallic H00 s; and I do hereby declare thefollowing to e a' full, clear, and exact descri tion thereof. i

l y invention relates to metallichoops for barrels, casks, tubs, kegs,and'the like, and its object is to provide a hoop which will have greatstrength along its upper or driving edge and also be properly trussed togive strength to the hoop and to the barrel to sustain loads.

The invention has particular reference to hoops for barrels forcontaining dry materials, s uch as flour, lime, etc. in which it isimportant to' provide a hoop very light in Weight and cheap, andyetsufliciently stiifto sustain the blows in driving and of sulficlenttruss strength; though of course it may be employed to advantage withheavier hoops for barrels containing liquid.

To these ends my invention consists in a hoop composed of a metallicstrip having a concentric upper or driving edge formed ofa lat folded lait being referred that this foldedlap she. I be inward y folded, andshall be a double folded lap to increase the strength at the upper edgeof the hoop and provide thickness of metal. for engagement with thedriving tool.

It also consists in otheriinprovcments as hereinafter set forth.

In the accompanying drawing Figure 1 IS a sectional view of thepreferred form of' hoop; Fig. 2 is a side view partly broken away of apart of a barrel showing the hoop applied to the chime portion; Fig. 3is a like view showing the hoop-applied to the bilge portion of thebarrel; Fig. 4 is a section on the line 44 of Fig. 1 showing thepreferred form of joint connecting the hoop ends; and Fig. 5 is a viewofanothcr form of hoop cm bodying the invention.

The hoop is preferably made from very thin metal such as of 28 to 30gage, which can be cut to proper width, and the resulting strips fed'toproper lapping and bending Inachinery to shape them. It has the bodyportion 2, the upper driving edge 3 and the lower trussed edge 4. Asshown in the drawings, the hoop is concentric; thatis, is a continuouscircle so as to bear closely upon the barrel throughout itscircumference. The upper or driving edge is formed of a folded lap5which has a positive crease or reversed bend of the metal at the upperedge of the hoop,

so forming a flat folded lap and roviding at least a double thickness ofmeta for driving,

and preventing bending or breaking down of the drlving edge under thedriving blows of the driving tool. In its preferred form, I

employ a double folded edge, as illustrated,- the metal of the edgebeing bent tw ice'andinner side of the hoop, as'shown, because it givesa neater appearance to the outer face of the hoop and further, under thestraiuof driving enables thehoop to bind the folded driving edge closeto the body of the barrel when itis driven down to place and brings allthe strength of the main bodyof the hoop boaring upon said folded edgewhich. is clamped between the body of the barrel and the main body ofthe hoop, and reduces the diameter of the upper edge portion so makingit couform more closely to the incline of the barrel bod y. I thus alsoprovide two or more thicknesses of metal along the upper edge of thehoopand thereby give to the hoop greater strength to resist bursting oroutward strain while the thick lapped portion increases the trussstrength of the hoop, and by binding closely around the entirecircumference of the barrel, increases the truss strength of -the barrelitself, all of which enables meto form the hoop of much lightermaterial. than is usually considered necessary. In connection with theouter or driving edge so strengthened I employthe lower or trussed edge4. which, as shown, extends outwardly at or approximately at a rightangle as at 11, and is then bent backwardly for a short distance as at12,' the backward bend being of less dcptlitlran the height of theforwaul bend so that it will not'contact with the body of the barrel.Such construction gives an exceedingly still trussed ed e to the hoopnot liable to damageinhand ing and one which will not cutthe hands ofthe workmen and aroun the edge of the upper lap at 16 as is which onaccount of the reverse edge portion,

is greatly increased in trussstrength and im--- parts, to the barrelsufficient load-carrying strength where the barrels resting on theirbilge are piled one u on the other. Accordmg to the uses to w 'ch thehoop is put, it

, maybe expanded or not before use, as found desirable. For-chime hoopthis is desirable to; enable the hoops to pass easily ever the edge of.the barrel and to be more easily driven to place.

The'great strength obtained-by means "of the concentric folded edge andthe trussed lower edge enables me to provide a hoop made of very thinsheet metal which can .easily be driven to place, providing asufficiently broad and stiif driving edge for that hoop the trussed togive all the stiffness necessary and strength to sustain blows. It canbe rapidly and chea ly roduced and enables me to arrdl with less weightof metal and therefore more cheaply than;has heretofore been consideredpracticable.

In Fig. 1.1 have illustrated the preferred .way of uniting the ends ofthe 1100 the hoops being cut to exact length, accor ing to the desireddiameter and their ends abutting, and the jointing strip 13 conforms tothe-trussed upper and lower edges of the hoopjriveted to the ends. Asshown in the drawing, such joint stri is bent to conform to the upperlapped ec e 3 and the lower trussed edge 4 and to the body ortion 2.Itsup er portionJ i is preferab y carried its lower lip portion-15 at17, these portions extending above and below-the hoop itself and bylapping on each side of the trussed portions 3 and 4 giving greatstrength to the oint and overcoming any necessity for lapping the same.Such joint strips can be aplied either by shearing them as needed andbending the piece to the desired shape while punching both the jointstrips and hoops themselves for the rivets, or such (parts may be bentseparately and if desire punched se rate a ly l in Fig. 5 is shownanother form .of hoop in which there is only the single lap of metalforming the u per edge of the strip, and this lap is 'rovide on theouter face of the strip. Such orm is not, however, considered asdesirable as the form illustrated in the other figures.

- What I claim'is:

q 1. A- metallic barrel hoop formed of a me' tallic' stri --having aconcentric-upper or driving e ge formed of an inwardly folded fiat la 2.X barrel hoop formed of a metallic strip having a concentric drivingedge formed of a double folded flat lap.

3. A barrel hoop formed of a metallic strip having a concentric drivingedge formed of an inwardly bent, double folded flat lap.

4. A metallic barrel hoop formed of a metallic strap having a concentricupper or driving e ge formed of a folded lap and having an outwardlyturnedlower flange, provided with a reverse inwardly turned lip portionof less depth than the height of said flange.

- 5. A barrel hoop formed of a metal strip having a concentric upper ordriving edge formed of a folded lap, and having its body beaded in underthe 01 port thereto. 1

6. The combination of a barrel hoop formed of a metal strip havingenlargements at its top and bottom edges, and a jointing stripcorresponding in'shape to the. body of the hoop and the enlargementsthereof and securing the ends together.

7. The combination of a barrel hoop formed of a metal strip havingenlargements at its top and bottom edges, and a jointing stripcorresponding in shape to the body the hoop and the enlargements thereofand securing the ends together, said jointing strip having its edgescarried beyond and above and below the enlarged edges of the hoop.

In testimony whereof, I the said /VILLIAM GOLDIE have hereunto set myvhand.

WILLIAM GOLDIE.

Witnesses ROBERT C. TOTTEN, J. B. KELLER.

p to give sup--

